Lichen – Native
Lichen - Crustose
Current conservation status
2018 | Data Deficient | Qualifiers: OL
South Island: Canterbury (Banks Peninsula), Otago (Cromwell, Dunedin).
On rocks, with species of Acarospora, Caloplaca, Candelariella, Rhizocarpon and Xanthoparmelia.
Thallus dull greenish-brown to red-brown, rather leathery, cracked into rather thick (0.2-0.5 mm) angular, areolae; areolae very irregular, centrally separated by deep cracks, rounded sublobulate at margins, ± convex, 0.5-1.2 mm diam., cortex C+ red. Apothecia very small, sunken, 2-3 per areola, 0.3-0.6 mm diam., disc red-brown, matt epruinose. Ascospores minute, ellipsoid to cylindrical, 100-200 per ascus, 3.5-5 × 1.5 µm.
Similar to A. fuscata in habit and structure but has a pale lower and a paler upper surface, a more determinate thallus and more deeply impressed apothecia.
Fact sheet prepared by Marley Ford (26 January 2023). Brief description, Distribution, Habitat, and Features sections copied from Galloway (1985) & Galloway (2007).
References and further reading
Galloway D.J. 1985: Flora of New Zealand: Lichens. Wellington: PD Hasselberg, Government Printer. 662 pp.
Galloway D.J. 2007: Flora of New Zealand: Lichens, including lichen-forming and lichenicolous fungi. 2nd edition. Lincoln, Manaaki Whenua Press. 2261 pp.